CVE-2026-40320

HIGH

Giskard ConformityCheck - Unsandboxed Jinja2 Template Rendering

Title source: manual
STIX 2.1

Description

Giskard is an open-source testing framework for AI models. In versions prior to 1.0.2b1, the ConformityCheck class rendered the rule parameter through Jinja2's default Template() constructor, silently interpreting template expressions at runtime. If check definitions are loaded from an untrusted source, a crafted rule string could achieve arbitrary code execution. Exploitation requires write access to a check definition and subsequent execution of the test suite. This issue has been fixed in giskard-checks version 1.0.2b1.

References (2)

Core 2

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 4.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-1336
Status published
Products (3)
giskard/giskard < 1.0.2
Giskard-AI/giskard-oss < 1.0.2b1
pypi/giskard-checks 0 - 1.0.2b1PyPI
Published Apr 17, 2026
Tracked Since Apr 17, 2026